Coupling



Patented Apr. 22, 1947 Original application January 20, 1943, Serial No. 473,032. Divided and this application June 13, '1944, Serial No. 540,149

3 Claims. (01. 284-19) This application relates generally to couplings,

Q and more particularly to swivelin quickly at'-- tacha'ble and detachable couplings.

All devices of this character made accordin to'the teachings of the prior art, and with which I am familiar, especially those having check valves, have had a restricted area for the passage of fluid. Many couplings now on the market do not swivel. and they become uncoupled in use. Prior couplings required two hands to make the Fig. is a perspective view of the check valve I in my novel coupling shown in Fig. 4.

coupling, which has been a hindrance in many I situations.

The check valves in prior couplings have a tendency to .tilt thereby locking it, and thereby permitting free flow of fluid.

This.application is a division of Serial No. 473,032, now Patent 2,377,812.

It is accordingly, an object of my invention to overcome the above and other defects in couplings and it is more particularly an object of my invention to provide a quickly attachable and detachable couplingwhich is simple in construction, economical in cost and manufacture, easy to operate, and efllcient in operation. d

Another object of my invention is to provide a fluid tight swiveling coupling which can be snapped together with one hand.

Another object of my invention is to provide a coupling which is detachable only by the intervention of, manual means.

Another object of my invention is to provide a coupling having a check valve disposed thereon which has a maximum unrestricted area for the flow of fluid therethrough Another object of my invention is the provision of a novel check valve in a coupling.

Another object of my invention is to provide a coupling wherein a snap connection can be made by merely inserting the male member into the female member.

Other objects of my invention will become evident from the following detailed description taken in conjunction with the accompanying drawings. in which:

Referring now to the drawings, Figs. 1 to 5 show a male member I having a shoulder 2, a connecting portion 3v and an annular groove 4.

' A male member I4 has a head .I I on the connecting portion 'I3-for abutting in sealing relationship with the .washer 12. An internal annular washer l2 in the head ll engages apertured tubular portions I8 of a check valve with a centrally disposed guiding flange I8 having longi tudinally extending grooves around the circumference thereof for the passage of fluid. It will be noted that a double seal is provided-in this form of coupling and the check valve may be reversed. The guiding flange I8 is made of such width that there is no cocking of the check valve thereby always assuring a perfect seal when the male and female members 10 and 14 are discon- .nected and a spring 15 urges the flange TI in sealing relationship with the Washer 12 in the female member 10.

In operation, the check valve may be assembled with either tubular end 18 adapted to engage the washer I2 in the head ll. When the male member I4 is inserted in the female member 10, the washer 12 engages the tubular portion 18 to Fig. I is a side elevational view with parts 4 broken away of my novel coupling showing a form of check valve.

Fi 2 is an exploded side elevational view with parts broken away of the coupling shown in Fig. l.

Fi 3 is a view taken on the line 3-3 of Fig. 1.

Fig. 4 is a fragmentary side elevational view with parts broken away of another form of male connecting member used with the check valve shown in Figure 5.

force the flange l1 away from the washer 12 to permit the free flow of fluid through the coupling.

It will be seen from the foregoing description I that I have provided a-quickly attachable and detachable swiveling coupling which can be coupled by, merely inserting the connecting portion of the male member into the female member and which is not easily disconnected by movement of the coupling on the ground.

Various changes may be made in the specific embodiment of the present invention without departing from the spirit thereof, or from the scope of the appended claims.

What I claim is:

1 In a quickly attachable and detachable coupling, in combination, a.male member, a female member having a cylindrical internal portion and an internal shoulder, means for connecting said a reversible pring-urged plate member having a grooved peripheral portion substantially the internal diameter of the internal portion of said female member, similar apertured cylindrical members each having laterally disposed apertures extending axially from opposite sides of said plate member, one of said cylindrical members being constantly in engagement with the internal portion of said washer, said plate member being urged in sealing relationship with said washer when said male and female members are disconnected, and being movable away from said washer when said cylindrical member in engagement with said washer is engaged by said male member when said male and female members are connected together.

2. In a quickly attachable and detachable coupling, in combination. a male member, a female member having a cylindrical internal portion, means for connecting said male and female members together, an annular washer, a reversible plate member having a grooved peripheral portion substantially the internal diameter of said internal portion of said female member, apertured cylindrical members having laterally disposed apertures extending axially from both sides of said plate member, one of said cylindrical members being constantly in engagement with the internal portion of said washer, and a spring member for urging said plate member into engagement with said washer when said male and female members are disconnected, said plate member being movable longitudinally against said spring for free flow of fluid when said male member is connected to said female member.

3. In a quickly attachable and detachable coupling, in combination, mated coupling members, one of said coupling members having an interior portion," a shoulder on said interior portion;

. connected together.

ALBERT T. SCHEIWER.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 2,307,427 Smith et al. Jan. 5, 1943 2,092,116 Hansen Sept. '7, 1937 2,135,221 Scheiwer Nov. 1, 1938 2,135,222 Scheiwer Nov. 1, 1938 2,255,333

Scheiwer Sept. 9, 1941 

